stm32f7: board: add splash screen

Support several pixel format (8bits, 16bits, 24bits & 32bits).
Add new file st_logo_data.h which contains logo
stmicroelectronics_uboot_logo_8bit_rle.bmp.

Signed-off-by: yannick fertre <yannick.fertre@st.com>

board/st/stm32f746-disco/stm32f746-disco.c

@@ -7,8 +7,12 @@
 
 #include <common.h>
 #include <dm.h>
+#include <lcd.h>
 #include <ram.h>
 #include <spl.h>
+#include <splash.h>
+#include <st_logo_data.h>
+#include <video.h>
 #include <asm/io.h>
 #include <asm/armv7m.h>
 #include <asm/arch/stm32.h>
@@ -153,5 +157,10 @@ int board_init(void)
 	STM32_SYSCFG->pmc |= SYSCFG_PMC_MII_RMII_SEL;
 #endif
 
+#if defined(CONFIG_CMD_BMP)
+	bmp_display((ulong)stmicroelectronics_uboot_logo_8bit_rle,
+		    BMP_ALIGN_CENTER, BMP_ALIGN_CENTER);
+#endif /* CONFIG_CMD_BMP */
+
 	return 0;
 }

include/configs/stm32f746-disco.h

@@ -79,4 +79,14 @@
 #endif
 /* For SPL ends */
 
+/* For splashcreen */
+#ifdef CONFIG_DM_VIDEO
+#define CONFIG_VIDEO_BMP_RLE8
+#define CONFIG_BMP_16BPP
+#define CONFIG_BMP_24BPP
+#define CONFIG_BMP_32BPP
+#define CONFIG_SPLASH_SCREEN
+#define CONFIG_SPLASH_SCREEN_ALIGN
+#endif
+
 #endif /* __CONFIG_H */